Materials: A clean dry transparent glass jar (e. g., a jam bottle or a bigger bottle) Warm water Ice cubes Metal lid or a piece of metal (tray) to cover the mouth of the bottle.
steps :
Fill a jar with 2 inches (5 cm) of warm water and stir. Then light a match, blow it out and quickly drop it into the jar. Immediately place an ice-filled metal tray or metal lid with ice on rop. Observe what happened for a couple of minutes. Lift the metal lid off the mouth of the Jar and observe what happens.

Questions:
(1) Why did you fill the jar with warm water and not cold water?

(2) What is the purpose of dropping a match that gives out smoke? What other materials can you use instead of a match?

(3) What is the purpose of placing a metal lid or tray with ice on top?

(4) What did you see inside the jar after a couple of minutes? Explain what happened inside the jar

(5) If the experiment were repeated. without a match producing smoke what would you expect to see? No thick cloud​

burning of wood and coal

explanation:

the panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in earth's temperatures over the past 50 years.

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !